316L Stainless Steel Capillary Tubes: Precision Manufacturing for Critical Components
Introduction
Medical grade 316L stainless steel remains the most widely used material for surgical instruments and implantable devices. Its combination of corrosion resistance, mechanical strength, and biocompatibility makes it indispensable in healthcare.
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Chemical Composition
| Element | % | Role |
|---|---|---|
| Carbon | ≤0.03 | Prevents chromium carbide precipitation |
| Chromium | 16.0-18.0 | Passive oxide layer |
| Nickel | 10.0-14.0 | Stabilizes austenitic structure |
| Molybdenum | 2.0-3.0 | Pitting corrosion resistance |
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Mechanical Properties
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 485-620 | MPa |
| Yield Strength | 170-310 | MPa |
| Elongation | 40-60 | % |
| Hardness | 150-190 | HB |
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Medical Applications
| Category | Applications |
|---|---|
| Surgical Instruments | Scalpels, forceps, scissors, retractors |
| Orthopedic Implants | Bone screws, plates, nails |
| Cardiovascular | Stents, guidewires |
| Dental | Root canal files, wires |
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Why 316L Remains Standard
- Cost-Effectiveness: Lower cost than titanium or cobalt-chrome
- Proven History: 80+ years of clinical data
- Manufacturability: Excellent CNC machinability
- Regulatory Acceptance: ISO 5832-1 simplifies approval
Healsmed
Leading Stainless Steel Capillary Tube Factory. 1,400+ standard sizes IN STOCK & ready to ship worldwide! High precision, factory-direct price.
